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The LX3302A is a highly integrated programmable data conversion IC designed for interfacing to and managing of inductive position sensors. These sensors use printed circuit board (PCB) traces to accurately detect the location of the metal target and are immune to stray magnetics fields and eliminate the need of a magnet, required with other types of magnetic field based sensors. The device includes an integrated oscillator circuit for driving the primary coil of an inductive sensor, along with two independent analog conversion paths for conditioning, converting, and processing of sine and cosine analog signals from the secondary coils of the sensor. Each path includes an EMI filter, demodulator, anti-alias filter, programmable amplifier, and a 13-bit sigma-delta analog-to-digital converter. The resulting output is an accurate 12-bit resolution signal that represent the movement of the metal target over the PCB based sensor. There's also an additional 10-bit ADC that makes temperature sensor and z-direction measurement options available.
Each analog signal path includes digital calibration capability which allows the complete analog path (including the external sensors) to be calibrated during the system manufacturing process. The calibration information is written to an internal EEPROM resulting in improved production yields, and in-line system upgrades. The EEPROM is coupled with an internal 32-bit RISC processor to provide programmable advanced digital filtering, fault monitoring, and signal processing options to use the IC in wide range of applications.
System output interfaces include a 16-bit PWM, a 12-bit digital-to-analog converter (DAC) in addition to a digital three wire SENT and a two wire current modulated PSI5 protocol.
The LX3302A is offered in TSSOP14, the device is specified over a temperature range of -40°C to +150°C making it suitable for a wide range of commercial, industrial, medical, and/or automotive sensor applications.
Get a head start on your design by visiting our Inductive Position Sensor Design Page
The below list of
technical documents, software and reference designs are available upon request,
for more information, please contact Mark.Smith@microchip.com.
- LX3302A Datasheet
- LX3302A Auto Calibration User Guide
- LX3302A Resolver Replacement Reference Design
- Sensor Evaluation and Calibration Software (1.x)
- Sensor Evaluation and Calibration Software Beta Version (2.x)
Microchip can help with
your own sensor design with its own unique mechanical constraints. You
can start with one of our Kits, but Microchip is ready to help you from
day one. Talk with our sales team and describe your sensor
requirement. We will work with you on getting a design up and
running to take advantage of this advanced technology.
Get started with your first design by ordering a position sensor evaluation kit
for your first project. There are linear and rotational evaluation kits
available. Each kits includes a Sensor evaluation board, a IPCE
programmer, links to our IPCE software, and applicable cables. There are
also separate evaluation boards and programmers available for orders.
KITS (includes a
Sensor, Programmer, and cables)
LXK3302AR001
LXK3302AL002
LXK3302ARD001
EVB (Sensor):
LXE3302AR001
LXE3302AL002
LXE3302ARD001
Programmer (programmer
and Cable):
LXM9518
This Kits includes a LXE3302ARD001 Sensor evaluation board, a IPCE programmer, links to our IPCE software, and applicable cables. See our LX3302A and LX3301A Evaluation Kit User Guide how to get started with the KIT.
SENSOR PCB:
The sensor is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3302A IC and
IPCE Programmer:
The programmer provides simple interface between the evaluation board and the laptop, together with the Integrated Programming and Calibration Environment (IPCE) GUI, it allows data capturing, measuring and auto calibration of the device. Some key features of the IPCE are
o Simplified Sensor System Calibration and Testing
o Programs EEPROM
This LXE3302ARD001 is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3302A IC and passive components installed, along with a connector and cable for interface to our IPCE programmer. All you need is to power it up to get readings.
Check out our ...
This Kits includes a LXE3301AL003 Sensor evaluation board, a IPCE programmer, links to our IPCE software, and applicable cables. See our LX3302A and LX3301A Evaluation Kit User Guide how to get started with the KIT.
SENSOR PCB:
The sensor is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3301A IC and
This Kits includes a LXE3301AR001 Sensor evaluation board, an IPCE programmer, links to our IPCE software, and applicable cables. See our LX3302A and LX3301A Evaluation Kit User Guide how to get started with the KIT.
SENSOR PCB:
The sensor is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3301A IC and
This Kits includes a LXE3302AL002 Sensor evaluation board, a IPCE programmer, links to our IPCE software, and applicable cables. See our LX3302A and LX3301A Evaluation Kit User Guide how to get started with the KIT.
SENSOR PCB:
The sensor is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3302A IC and
This LXE3301AL003 is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3301A IC and passive components installed, along with a connector and cable for interface to our IPCE programmer. All you need is to power it up to get readings.
Check out our
...
This LXE3301AR001 is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3301A IC and passive components installed, along with a connector and cable for interface to our IPCE programmer. All you need is to power it up to get readings.
Check out our ...
This LXE3302AL002 is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3302A IC and passive components installed, along with a connector and cable for interface to our IPCE programmer. All you need is to power it up to get readings.
Check out our ...
This LXE3302AR001 is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3302A IC and passive components installed, along with a connector and cable for interface to our IPCE programmer. All you need is to power it up to get readings.
Check out our ...
This Kits includes a LXE3302AR001 Sensor evaluation board, a IPCE programmer, links to our IPCE software, and applicable cables. See our LX3302A and LX3301A Evaluation Kit User Guide how to get started with the KIT.
SENSOR PCB:
The sensor is the first step to using an Inductive Position sensor in your application. Each sensor PCB comes with LX3302A IC and
For pricing and availability, contact Microchip Local Sales.